(First conditional) If the teacher __________________ (give) us lots of homework thisweekend, I __________________ (not be) happy.

1. Break Down the Problem

The sentence is structured as a first conditional statement, which generally describes a real possibility in the future. It consists of two parts: the 'if' clause (condition) and the main clause (result).

2. Relevant Concepts

In the first conditional, the structure is:

• If + present simple, will + base form of the verb
  • Example: If it rains, I will stay home.

3. Analysis and Detail

In this sentence:

• The 'if' clause is: "If the teacher ________________".
• The main clause is: "I ________________".

We need to fill in the appropriate verb forms. The verb "give" in the 'if' clause will use the present simple form. The phrase "not be" needs to be adjusted to the future simple tense with 'will not'.

4. Verify and Summarize

• If the teacher gives us lots of homework this weekend (condition), I will not be happy (result).

Thus, the completed sentence should read: If the teacher gives us lots of homework this weekend, I will not be happy.

Final Answer

If the teacher gives us lots of homework this weekend, I will not be happy.